Accession Number : AD0655275

Title :   GREASES. EFFECTS OF COMPOSITION AND SHEAR RATE ON MECHANICAL STABILITY.

Descriptive Note : Technical rept.,

Corporate Author : ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH AND ENGINEERING DIV

Personal Author(s) : Young,Robert L.

Report Date : APR 1967

Pagination or Media Count : 24

Abstract : Seventeen greases were shear worked at ambient temperatures by three different shear methods. The approximate shear rates of these methods were 20/sec., 450/sec., and 10,000/sec. The breakdown of the greases was evaluated by consistency changes as determined by the 1/4 scale worked penetration, ASTM Federal Test Method D-1403. It was found that the greases made with synthetic thickeners were usually more shear stable than those made with soap base thickeners. In a majority of greases the higher the rate of shear, the greater the breakdown. (Author)

Descriptors :   (*GREASES, STABILITY), ADDITIVES, VISCOSITY, SHEAR STRESSES, PENETRATION

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE